<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .showRed{
            color: red;
        }
    </style>
</head>
<body>
    <!-- 点击列表中的哪一项,那么该项的文字变成红色 -->
    <div id="app">
        <ul>
            <li v-for="(item,index) in movies" v-on:click="changeColor(index)" v-bind:class="{showRed : currentIndex === index}">{{index}}--{{item}}</li>
        </ul>
    </div>

    <script src="../js/vue.js"></script>
    <script>
        const app = new Vue({
            el: '#app',
            data: {
                movies: ['海王','海尔兄弟','火影忍者','进击的巨人'],
                currentIndex : 0
            },
            methods: {
                changeColor: function(index){
                    this.currentIndex = index;
                }
            }
        })
    </script>
</body>
</html>